Troubleshooting And Maintenance; Operation Of The Faults And Alarms - WEG CFW-11 RB User Manual

6 TROUBLESHOOTING AND MAINTENANCE

This chapter presents the following:
Lists all faults and alarms that may occur.
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Indicates the possible causes of each fault and alarm.
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Lists most frequent problems and corrective actions.
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Presents instructions for periodic inspections and preventive maintenance in the equipment.
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6.1 OPERATION OF THE FAULTS AND ALARMS

When a fault is detected fault (FXXX):
The PWM pulses are blocked.
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The keypad displays the fault code and description.
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The "Status" Led starts flashing red.
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The output relay set to "No Fault" opens.
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Some control circuitry data is saved in the EEPROM memory:
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- The fault or alarm code that occurred (shifts the last nine previous faults and alarms).
- The state of the operating hours counter (P0043) and the powered-up hours counter (P0042).
Reset the converter to return the drive to a "Ready" condition in the event of a fault. The following reset options
are available:
Removing the power supply and reapplying it (power-on reset).
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Pressing the operator key
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Through the "Reset" soft key.
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Automatically by setting P0340 (auto-reset).
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Through a digital input: DIx = 20 (P0263 to P0270).
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When an alarm situation ("Alarm" (AXXX)) is detected:
The keypad displays the alarm code and description.
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The "Status" Led changes to yellow.
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The PWM pulses are not blocked (the converter is still operating).
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(manual reset).
Troubleshooting and Maintenance
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CFW-11 RB | 6-1